[1]刘 涛,等.川西亚高山生态系统三种典型植物凋落物分解动态特征[J].山地学报,2017,(05):663-668.[doi:10.16089/j.cnki.1008-2786.000265]
 LIU Tao,SUN Shouqin*,et al.Dynamics and Differences in the Decomposition of Litters from Three Dominating Plants in Subalpine Ecosystems in Western Sichuan, China[J].Mountain Research,2017,(05):663-668.[doi:10.16089/j.cnki.1008-2786.000265]
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川西亚高山生态系统三种典型植物凋落物分解动态特征()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2017年05期
页码:
663-668
栏目:
出版日期:
2017-09-30

文章信息/Info

Title:
Dynamics and Differences in the Decomposition of Litters from Three Dominating Plants in Subalpine Ecosystems in Western Sichuan, China
文章编号:
1008-2786-(2017)5-663-06
作者:
刘 涛1 2孙守琴1*邱 阳1 3
1.中国科学院水利部成都山地灾害与环境研究所 山地表生过程与生态调控重点实验室,四川 成都610041;
2.中国科学院大学,北京 100049;
3.四川师范大学 生命科学学院,四川 成都610101
Author(s):
LIU Tao1 2 SUN Shouqin1* QIU Yang1 3
1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610014, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3 College of Life Science, Sichuan Normal University, Chengdu 610101, China
关键词:
凋落物分解 赤茎藓 杜鹃 峨眉冷杉 亚高山生态系统 养分释放
分类号:
S718.5
DOI:
10.16089/j.cnki.1008-2786.000265
文献标志码:
A
摘要:
植物凋落物是高山生态系统重要的养分存储库,凋落物的分解在高山生态系统生物地球化学循环中具有重要作用。本研究采用凋落物分解袋法,分析了贡嘎山亚高山暗针叶林和高山灌丛中赤茎藓(Pleurozium schreberi)、峨眉冷杉(Abies fabri)和杜鹃(Rhododendron williamsianum)三种植物凋落物的分解速率和养分释放动态及差异。结果表明:1)经三年分解后,无论是暗针叶林还是高山灌丛,杜鹃凋落物分解率均最高; 峨眉冷杉凋落物分解率在暗针叶林略高于赤茎藓凋落物,但在高山灌丛和赤茎藓无显著差异; 2)三种植物凋落物的分解动态均能用Olson经典指数模型拟合; 3)分解三年后,三种凋落物碳(C)含量下降了5.66%~14.58%; 氮(N)含量增加了6.46%~42.10%; 峨眉冷杉和杜鹃凋落物磷(P)含量增高,赤茎藓凋落物中P含量降低。

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备注/Memo

备注/Memo:
收稿日期(Received date):2017-02-16; 改回日期(Accepted date): 2017-05-17
基金项目(Foundation item):自然科学基金项目(41473078; 41273096)资助[National Natural Science Funds of China(41473078; 41273096)]
作者简介(Biography):刘涛(1991-),男,硕士研究生,河南省人,研究方向: 气候变化生态学[Liu Tao, M.Sc.candidate, male, born in Henan Province, specialized in climate change ecology]E-mail: liutao19910717@163.com
*通讯作者(Corresponding author):孙守琴( 1980-),女,博士,四川省人,副研究员,研究方向: 气候变化生态学、元素生物地球化学循环[Sun Shouqin, Ph.D., female, born in Sichuan Province, associate professor, specialized in climate change ecology and elementary biogeochemical cycling]E-mail: shouqinsun@ imde.ac.cn
更新日期/Last Update: 2017-09-30